83633321 has 2 divisors, whose sum is σ = 83633322. Its totient is φ = 83633320.

The previous prime is 83633279. The next prime is 83633377. The reversal of 83633321 is 12333638.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74995600 + 8637721 = 8660^2 + 2939^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83633321 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (83633021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41816660 + 41816661.

It is an arithmetic number, because the mean of its divisors is an integer number (41816661).

Almost surely, 2^83633321 is an apocalyptic number.

It is an amenable number.

83633321 is a deficient number, since it is larger than the sum of its proper divisors (1).

83633321 is an equidigital number, since it uses as much as digits as its factorization.

83633321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 29.

The square root of 83633321 is about 9145.1255322166. The cubic root of 83633321 is about 437.3137314272.

Adding to 83633321 its reverse (12333638), we get a palindrome (95966959).

The spelling of 83633321 in words is "eighty-three million, six hundred thirty-three thousand, three hundred twenty-one".